In an interview with TV Week, Blair explained: "Oliver and Carmella - living overseas with little Chloe - return to help Rebecca in her time of need.

"They all have a history with Paul Robinson, and so they come back to protect Rebecca and watch out for her best interests."

Discussing why she agreed to the brief return, Blair added: "When we found out it was just for two episodes - and knowing it was for Jane Hall - that's what made us go, 'Oh it's for Jane! We can't not come back for Jane!' David and I are very, very close to her, so we couldn't resist."

Blair and Hoflin - currently based in Los Angeles - have also been a couple in real life for the past three years.